ISO 28801-2011 厂方风险质量(PRQ)和消费者风险质量(CRQ)索引,用最少样本量属性的二重抽样计划
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【英文标准名称】:Doublesamplingplansbyattributeswithminimalsamplesizes,indexedbyproducer'sriskquality(PRQ)andconsumer'sriskquality(CRQ)
【原文标准名称】:厂方风险质量(PRQ)和消费者风险质量(CRQ)索引,用最少样本量属性的二重抽样计划
【标准号】:ISO28801-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-03-15
【实施或试行日期】:2011-03-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC69
【标准类型】:()
【标准水平】:()
【中文主题词】:验收(鉴定);应用;消费者与供货者的关系;缺陷与故障;定义(术语);落纱缸;误差;检验;计数检查;质量保证;质量控制;质量水平;质量管理;随机试样;风险;样本量;样品试验;抽样方法;抽样方案;统计方法分析;统计质量控制;统计学;供应商风险;单位
【英文主题词】:Acceptance(approval);Applications;Consumer-supplierrelations;Defects;Definitions;Doffingcylinders;Errors;Inspection;Inspectionbyattributes;Qualityassurance;Qualitycontrol;Qualitylevel;Qualitymanagement;Randomsamples;Risk;Samplesizes;Sampletests;Samplingmethods;Samplingplan;Statisticalmethodsofanalysis;Statisticalqualitycontrol;Statistics;Supplierrisk;Units
【摘要】:ThisInternationalStandardprovidesdoublesamplingplansbyattributesfortheacceptanceinspectionoflotsofdiscreteitems.Theplansareindexedbytheproducer'sriskquality(PRQ)andtheconsumer'sriskquality(CRQ)wherethenominalproducer'sandconsumer'srisksarerespectivelyeither(5%,5%),(5%,10%)or(10%,10%).Plansareprovidedforinspectionforpercentnonconformingandforinspectionfornonconformitiesper100items.Thelotisacceptediftherearenononconformingitems(nonconformities)inthefirstrandomsample,andrejectedifitcontainstwoormorenonconformingitems(nonconformities).Ifpreciselyonenonconformingitemisfoundinthefirstsample,asecondrandomsampleisdrawn;thelotisthenacceptedifthesecondsamplecontainsnononconformingitems(nonconformities)andrejectedotherwise.TheobjectiveofthisInternationalStandardistoprovideproceduresthatenablelotdispositiontobedeterminedquicklyandeconomicallyifqualityisparticularlygoodorbad.Forintermediatequality,asecondsampleisdrawninordertobeabletodiscriminatemorereliablybetweenacceptableandunacceptablelots.Thetwosamplesizesarechosentominimizethemaximumexpectedsamplesizewithrespecttoincomingqualitysubjecttothenominalrisksnotbeingexceeded.Similarly,theplansmaybeusedtotestthehypothesisthatalotorprocessqualitylevelisequaltothePRQ(i.e.acceptable)againstthealternativehypothesisthatthequalitylevelisequaltotheCRQ(i.e.unacceptable).Theplansarepreferabletosinglesamplingplanswherethecostofinspectionishigh,wherethedelayanduncertaintycausedbythepossiblerequirementforsecondsamplesisinconsequentialandwherearelativelylargeratiooftheconsumer'sriskqualitytotheproducer'sriskqualitycanbetolerated.Theplansaresuitableforisolatedlotsorforshortseriesoflots,wherethesumofthetwosamplesizesisnolargerthanabout10%ofthesizeofthelot.Theplansarealsosuitableforcontinuingseriesoflotswhenlotsthatfailtosatisfytheacceptancecriteriaare100%inspectedandallnonconformingitemsreplacedbyconformingitems;however,forcontinuingseriesoflots,considerationshouldalsobegiventousingdoublesamplingplansfromISO2859-1.Thestatisticaltheoryunderlyingtheplans,tablesandfiguresisprovidedinAnnexA.
【中国标准分类号】:
【国际标准分类号】:03_120_30
【页数】:78P.;A4
【正文语种】:英语
【原文标准名称】:厂方风险质量(PRQ)和消费者风险质量(CRQ)索引,用最少样本量属性的二重抽样计划
【标准号】:ISO28801-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-03-15
【实施或试行日期】:2011-03-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC69
【标准类型】:()
【标准水平】:()
【中文主题词】:验收(鉴定);应用;消费者与供货者的关系;缺陷与故障;定义(术语);落纱缸;误差;检验;计数检查;质量保证;质量控制;质量水平;质量管理;随机试样;风险;样本量;样品试验;抽样方法;抽样方案;统计方法分析;统计质量控制;统计学;供应商风险;单位
【英文主题词】:Acceptance(approval);Applications;Consumer-supplierrelations;Defects;Definitions;Doffingcylinders;Errors;Inspection;Inspectionbyattributes;Qualityassurance;Qualitycontrol;Qualitylevel;Qualitymanagement;Randomsamples;Risk;Samplesizes;Sampletests;Samplingmethods;Samplingplan;Statisticalmethodsofanalysis;Statisticalqualitycontrol;Statistics;Supplierrisk;Units
【摘要】:ThisInternationalStandardprovidesdoublesamplingplansbyattributesfortheacceptanceinspectionoflotsofdiscreteitems.Theplansareindexedbytheproducer'sriskquality(PRQ)andtheconsumer'sriskquality(CRQ)wherethenominalproducer'sandconsumer'srisksarerespectivelyeither(5%,5%),(5%,10%)or(10%,10%).Plansareprovidedforinspectionforpercentnonconformingandforinspectionfornonconformitiesper100items.Thelotisacceptediftherearenononconformingitems(nonconformities)inthefirstrandomsample,andrejectedifitcontainstwoormorenonconformingitems(nonconformities).Ifpreciselyonenonconformingitemisfoundinthefirstsample,asecondrandomsampleisdrawn;thelotisthenacceptedifthesecondsamplecontainsnononconformingitems(nonconformities)andrejectedotherwise.TheobjectiveofthisInternationalStandardistoprovideproceduresthatenablelotdispositiontobedeterminedquicklyandeconomicallyifqualityisparticularlygoodorbad.Forintermediatequality,asecondsampleisdrawninordertobeabletodiscriminatemorereliablybetweenacceptableandunacceptablelots.Thetwosamplesizesarechosentominimizethemaximumexpectedsamplesizewithrespecttoincomingqualitysubjecttothenominalrisksnotbeingexceeded.Similarly,theplansmaybeusedtotestthehypothesisthatalotorprocessqualitylevelisequaltothePRQ(i.e.acceptable)againstthealternativehypothesisthatthequalitylevelisequaltotheCRQ(i.e.unacceptable).Theplansarepreferabletosinglesamplingplanswherethecostofinspectionishigh,wherethedelayanduncertaintycausedbythepossiblerequirementforsecondsamplesisinconsequentialandwherearelativelylargeratiooftheconsumer'sriskqualitytotheproducer'sriskqualitycanbetolerated.Theplansaresuitableforisolatedlotsorforshortseriesoflots,wherethesumofthetwosamplesizesisnolargerthanabout10%ofthesizeofthelot.Theplansarealsosuitableforcontinuingseriesoflotswhenlotsthatfailtosatisfytheacceptancecriteriaare100%inspectedandallnonconformingitemsreplacedbyconformingitems;however,forcontinuingseriesoflots,considerationshouldalsobegiventousingdoublesamplingplansfromISO2859-1.Thestatisticaltheoryunderlyingtheplans,tablesandfiguresisprovidedinAnnexA.
【中国标准分类号】:
【国际标准分类号】:03_120_30
【页数】:78P.;A4
【正文语种】:英语
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